Forest Agent Tools – JSON Path Query

x402

Forest Agent Tools – JSON Path Query is a paid API for AI agents from http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-20).

Extract a single bounded value from caller-supplied JSON using a deterministic dot-notation path expression, returning the value and an explicit found flag.

Price / call$0.001

Seller volume →—

Success—

StatusUnknown

How this service works

Machine-readable contract for active Forest paid capabilities. Unsigned paid calls return HTTP 402 with a PAYMENT-REQUIRED x402 challenge.

Output

Returns the value found at the specified path within the supplied JSON, along with an explicit boolean 'found' flag indicating whether the path resolved successfully. No network requests or model inference are made; the result is fully deterministic.

Example use cases

Pull nested ID from API response

“I have this JSON response from a payment API and I need the value at $.data.id — can you extract that field and tell me if it exists?”

Read third item name from array

“Here's a JSON array of order items — grab the name field from the third entry, so items[2].name, and let me know if the path resolved.”

Check existence of config key

“I have a config JSON and I want to know if the key settings.notifications.enabled is present and what its value is — can you query that path for me?”

Technical details

Endpoint

POSThttps://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/json/query?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need a cheap, deterministic, side-effect-free way to extract a single value from a known JSON structure without running custom code or making additional network calls. Ideal when the path is known in advance and you want an explicit found/not-found signal rather than a null-ambiguous response. Not suitable for fuzzy search, multiple values, or XPath/JSONPath operators beyond dot-notation and numeric indexes.

Side effects

Path not found — returns found: false with a null or absent value
Malformed path syntax (invalid characters, unsupported operators) — returns an error or found: false
Provided JSON is not valid — parsing error returned
Path exceeds maxLength of 512 characters — rejected with validation error
Array index out of bounds — returns found: false

Input

Schema · Request body

Field	Type	Description
json	—	Public json value used to scope this lookup.
path	string	Repository file path whose public metadata should be checked.

Output

Schema · Response

{
  "type": "json",
  "example": {
    "ok": true,
    "data": {
      "path": "example",
      "found": false,
      "scope": "caller_supplied_json_path_lookup_only",
      "value": null,
      "value_type": "example",
      "input_bytes": 0
    },
    "meta": {
      "cache": "miss",
      "provider": "local-json",
      "checked_at": "2026-01-01T00:00:00.000Z",
      "duration_ms": 0
    },
    "version": "1",
    "capability": "json.query"
  }
}

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